1 files changed, 7 insertions, 5 deletions

diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index 97d98fbf5849..c613ae170a84 100644
--- a/drivers/ide/hpt366.c
+++ b/drivers/ide/hpt366.c
@@ -1173,8 +1173,9 @@ static u8 hpt3xx_cable_detect(ide_hwif_t *hwif)
                 u16 mcr;
 
                 pci_read_config_word(dev, mcr_addr, &mcr);
-                pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
-                /* now read cable id register */
+                pci_write_config_word(dev, mcr_addr, mcr | 0x8000);
+                /* Debounce, then read cable ID register */
+                udelay(10);
                 pci_read_config_byte(dev, 0x5a, &scr1);
                 pci_write_config_word(dev, mcr_addr, mcr);
         } else if (chip_type >= HPT370) {
@@ -1185,10 +1186,11 @@ static u8 hpt3xx_cable_detect(ide_hwif_t *hwif)
                 u8 scr2 = 0;
 
                 pci_read_config_byte(dev, 0x5b, &scr2);
-                pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
-                /* now read cable id register */
+                pci_write_config_byte(dev, 0x5b, scr2 & ~1);
+                /* Debounce, then read cable ID register */
+                udelay(10);
                 pci_read_config_byte(dev, 0x5a, &scr1);
-                pci_write_config_byte(dev, 0x5b,  scr2);
+                pci_write_config_byte(dev, 0x5b, scr2);
         } else
                 pci_read_config_byte(dev, 0x5a, &scr1);